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The preparation method of MOF/nylon 6 composite material

A technology of MOF and modified nylon, applied in the field of preparation of nano-MOF/nylon 6 composite materials, can solve the problems of affecting the molding processing efficiency of nylon materials, slow crystallization rate, and high injection mold temperature

Active Publication Date: 2020-07-28
常州锦弘新材料有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, when nylon is used as an engineering plastic, there are always problems such as slow crystallization rate, high injection mold temperature, and long molding cycle during the molding process, which affects the molding processing efficiency of nylon materials.

Method used

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  • The preparation method of MOF/nylon 6 composite material
  • The preparation method of MOF/nylon 6 composite material
  • The preparation method of MOF/nylon 6 composite material

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Embodiment Construction

[0012] The method for preparing nanometer MOF / nylon 6 composite material of the present invention, comprises the steps:

[0013] 1. Mix 30wt%-60wt% caprolactam, 5wt%-20wt% precursor for nano-MOF, 20wt%-35wt% polar organic solvent and 1wt%-5wt% water, and react the mixture at 120°C After 24 hours, the nano-MOF dispersion was obtained;

[0014] Wherein, the metal salt of the MOF precursor includes metal zirconium salt and metal cerium salt, and the described organic ligand is terephthalic acid, 2-aminoterephthalic acid, 2-hydroxyterephthalic acid, 2- Nitroterephthalic acid, 2-methylterephthalic acid, 1,4-naphthalene dicarboxylic acid; the polar organic solvents are N,N-dimethylformamide (DMF), N,N-di One of methylacetamide (DEA), N-methylpyrrolidone (NMP), methanol, and ethanol;

[0015] 2. evaporate the polar organic solvent in the nanometer MOF dispersion liquid that is gained by step 1, add 6-aminocaproic acid (taking the gross weight of nanometer MOF dispersion liquid as c...

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Abstract

The invention relates to modified nylon 6 resin, and a preparation method and an application thereof. The modified nylon 6 resin provided by the invention is prepared by addition of metal-organic framework (MOF) nanoparticles. The preparation method comprises the following steps: (1) dissolving a metal salt and an organic ligand used as MOF precursors, and a polymer monomer namely caprolactam intoa mixed solution composed of water and a polar organic solvent, and carrying out a reaction under heating at a certain temperature for a period of time so as to obtain a nanometer MOF dispersion; (2)carrying out evaporation so as to remove the polar organic solvent in the nanometer MOF dispersion obtained in the step (1), adding 6-aminocaproic acid into residues, and carrying out a polymerization reaction so as to obtain MOF nanoparticle modified nylon 6 resin masterbatches; and (3) subjecting the modified nylon 6 resin masterbatches obtained in the step (2) and nylon 6 (a market product) tomelt blending so as to obtain MOF nanoparticle modified nylon 6 resin. According to the invention, the MOF nanoparticles are used as a modifying agent in the process of polymerization, and the modifying agent can significantly improve crystallization properties of the modified nylon 6 resin provided by the invention.

Description

technical field [0001] The invention relates to a preparation method of a composite material containing polycaprolactam (nylon 6), in particular to a preparation method of a nanometer MOF / nylon 6 composite material. Background technique [0002] Metal-organic framework (MOF) materials are porous coordination polymers formed by the self-assembly of metal ions or ion clusters and multifunctional organic ligands. And the large specific surface area shows broad application prospects in many scientific fields, such as chemical catalysis, drug sustained release, gas adsorption and separation, hydrogen storage, and biomedicine. In order to extend the application range of MOF materials, more and more MOF composite materials have been developed. [0003] The interaction between metal ions and polymer polar groups provides new opportunities to improve the performance of polymers, and has become a hot spot in the research of polymer blend modification. A large number of studies have ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L77/02C08L87/00C08G69/08C08G69/14
CPCC08G69/08C08G69/14C08L77/02C08L2205/025C08L2205/03C08L87/00
Inventor 桑欣欣倪才华石刚
Owner 常州锦弘新材料有限公司
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